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Power Electronics

Power Electronics
Power transistor are type of

 IGBTs.
  All of above.
 MOSFETs.
 BJTs.

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Power Electronics
For series connected SCR’s dynamic equalising circuit consists of

  R and C in series but with diode across R.
 series R and diode with C across R.
 series R and diode with C across R.
 R and C in series but with diode across C.

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Power Electronics
The typical value of SCR for modern alternator is

 1.2.
 1.5.
 1.0.
 0.5.

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Power Electronics
During which time maximum conduction spreading take place in the thyristor during turn ON?

 Rise time.
 Delay time.
  Spread time.
 Same for every case.

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Power Electronics
A triac has ___________ semiconductor layers.

Five
Two
Three
Four

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Power Electronics
A UJT is sometimes called ___________ diode.

High resistance
Double-base
Single-base
Low resistance

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